CURRENT DETECTOR

PURPOSE:To provide a current detector in which a large hysteresis width can be taken. CONSTITUTION:A reference voltage source is connected to one input terminal of an operational amplifier 11, and a converter having a first resistor R12 and a transistor Q11 to convert a current to be detected into a...

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Bibliographische Detailangaben
1. Verfasser:	WAKI NAOZUMI
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROLLING MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES TESTING
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a current detector in which a large hysteresis width can be taken. CONSTITUTION:A reference voltage source is connected to one input terminal of an operational amplifier 11, and a converter having a first resistor R12 and a transistor Q11 to convert a current to be detected into a voltage value is connected between the other input terminal of the amplifier 11 and a ground terminal TG. The transistor Q11 is connected at its control terminal to an output of the amplifier 11, at its first terminal to the terminal TG and at its second terminal to the other input terminal of the amplifier 11 via the resistor R12. A second resistor R11 is further so connected between the input terminal T11 of the current to be detected and the terminal TG as to become parallel with a series circuit of the resistor R12 and the transistor Q11.